scholarly journals Hybrid Chemical Enhanced Oil Recovery Techniques: A Simulation Study

Symmetry ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1086 ◽  
Author(s):  
Haiyan Zhou ◽  
Afshin Davarpanah
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Field Data ◽  
Polymer Flooding ◽  
Oil Field ◽  
Recovery Factor ◽  
Surfactant Flooding ◽  
Conformance Control ◽  
Recovery Techniques ◽  
Polymer Surfactant

Simultaneous utilization of surfactant and preformed particle gel (henceforth; PPG) flooding on the oil recovery enhancement has been widely investigated as a preferable enhanced oil recovery technique after the polymer flooding. In this paper, a numerical model is developed to simulate the profound impact of hybrid chemical enhanced oil recovery methods (PPG/polymer/surfactant) in sandstone reservoirs. Moreover, the gel particle conformance control is considered in the developed model after polymer flooding performances on the oil recovery enhancement. To validate the developed model, two sets of experimental field data from Daqing oil field (PPG conformance control after polymer flooding) and Shengli oil field (PPG-surfactant flooding after polymer flooding) are used to check the reliability of the model. Combination of preformed gel particles, polymers and surfactants due to the deformation, swelling, and physicochemical properties of gel particles can mobilize the trapped oil through the porous media to enhance oil recovery factor by blocking the high permeable channels. As a result, PPG conformance control plays an essential role in oil recovery enhancement. Furthermore, experimental data of PPG/polymer/surfactant flooding in the Shengli field and its comparison with the proposed model indicated that the model and experimental field data are in a good agreement. Consequently, the coupled model of surfactant and PPG flooding after polymer flooding performances has led to more recovery factor rather than the basic chemical recovery techniques.

Study on Rheological Properties of the Activated Polymer Flooding System

2013 ◽  
Vol 807-809 ◽  
pp. 2647-2651
Author(s):  
Jian Zhang
Keyword(s):  
Shear Rate ◽  
Synergistic Effect ◽  
Oil Recovery ◽  
Polymer Flooding ◽  
Surfactant Flooding ◽  
Natural Surfactant ◽  
Optimum Formulation ◽  
Polymer Surfactant ◽  
First Time ◽  
Better Than

A novel kind of activated polymer flooding (APF) composing activated agent and polymer components designed for the target reservoir is studied for the first time. Interactions between the activated agent and natural surfactant from heavy oil, and the synergistic effect between the activated agent and polymer are existed. APF could enhance more oil recovery with less investment, compare to polymer-surfactant flooding (PSF) in the offshore heavy oilfield. The optimum formulation of APF is 1200mg/L polymer + 500mg/L activated agent. Experimental results implies that (1) the contained amide groups and sulfonic groups in APF can form hydrogen bonds with-NH2 groups contained in PM, (2) the apparent viscosity of APF was higher than PM along with the increase of shear rate, (3) the viscoelasticity, deformation capability and solubility of APF were much better than PM.

Effect of nanoparticles on the performance of polymer/surfactant flooding for enhanced oil recovery: A review

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122867
Author(s):  
Omid Tavakkoli ◽  
Hesam Kamyab ◽  
Mahdi Shariati ◽  
Abdeliazim Mustafa Mohamed ◽  
Radzuan Junin
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Surfactant Flooding ◽  
Polymer Surfactant

Study on Physical Simulation Experiments of Different Chemical Displacement Systems

2011 ◽  
Vol 201-203 ◽  
pp. 2562-2566
Author(s):  
Wen Xiang Wu ◽  
Deng Hui Mu ◽  
Qing Dong Liu
Keyword(s):  
Molecular Weight ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Physical Simulation ◽  
Oil Field ◽  
Polymer Molecular Weight ◽  
Simulation Experiments ◽  
Reservoir Condition ◽  
Asp Flooding ◽  
Polymer Surfactant

In the reservoir condition of Liaohe oil field, the indoor physical simulation experiments of polymer / surfactant binary combination flooding and polymer / surfactant / alkali (ASP) flooding in the artificial cores have been conducted. The results show that enhanced oil recovery of polymer flooding is about 24.4%, by utilizing experiment project that polymer molecular weight is 19 million, main slug concentration is 1500mg/L. Binary flooding system that molecular weight of polymer is 19 million, main slug concentration is 1500mg/L, 0.3% surfactant YR has improved the oil recovery by 30.1%. The ASP flooding system (19 million 1500mg/L polymer +0.3% surfactant SS+ 1.2%Na2CO3) has improved the oil recovery by 28.4%. It can be seen that the binary flooding system is best.

Experimental Investigation of a Viscous Surfactant and Surfactant Flooding to Enhance Oil Recovery

2009 ◽  
Author(s):  
Omid Arjmand ◽  
Jalal Foroozesh ◽  
Ali Reza Roostaee ◽  
Shahaboddin Ayatollahi
Keyword(s):  
Oil Recovery ◽  
Terephthalic Acid ◽  
Recovery Process ◽  
Oil Field ◽  
Recovery Factor ◽  
Water Flooding ◽  
Surfactant Flooding ◽  
Chemical Solutions ◽  
Secondary Oil Recovery ◽  
Enhance Oil Recovery

A chemical Enhanced Oil Recovery (EOR) process receives more attentions nowadays. Crude Terephthalic Acid (CTA) as a chemical compound is used for flooding here as an alternative to the traditional hydrolyzed polyacryl amide (HPAM). Crude Oil samples from an Iranian oil field were used during the flooding tests. Sand packed models using two different sizes of sand mainly 50 and 100 meshes were employed in this investigation. A comparison between water flooding and CTA flooding as a secondary oil recovery process revealed that the recovery was improved by 10% when CTA was used. The effect of various injection rates and different concentration of chemical solutions on the recovery factor have been checked. Besides, experimental results improved the surfactant behavior of the CTA solution in water. Moreover, at tertiary state, Sodium Dodocyl Sulfate (SDS) as an anionic surfactant was flooded. Experiments showed that recovery factor increased by 5% OOIP while using SDS.

scholarly journals Application of Fractional Flow Theory for Analytical Modeling of Surfactant Flooding, Polymer Flooding, and Surfactant/Polymer Flooding for Chemical Enhanced Oil Recovery

Water ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2195
Author(s):  
Lei Ding ◽  
Qianhui Wu ◽  
Lei Zhang ◽  
Dominique Guérillot
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Analytical Modeling ◽  
Flow Theory ◽  
Polymer Flooding ◽  
Surfactant Flooding ◽  
Fractional Flow ◽  
Oil Saturation ◽  
Polymer Retention ◽  
Fractional Flow Theory

Fractional flow theory still serves as a powerful tool for validation of numerical reservoir models, understanding of the mechanisms, and interpretation of transport behavior in porous media during the Chemical-Enhanced Oil Recovery (CEOR) process. With the enrichment of CEOR mechanisms, it is important to revisit the application of fractional flow theory to CEOR at this stage. For surfactant flooding, the effects of surfactant adsorption, surfactant partition, initial oil saturation, interfacial tension, and injection slug size have been systematically investigated. In terms of polymer flooding, the effects of polymer viscosity, initial oil saturation, polymer viscoelasticity, slug size, polymer inaccessible pore volume (IPV), and polymer retention are also reviewed extensively. Finally, the fractional flow theory is applied to surfactant/polymer flooding to evaluate its effectiveness in CEOR. This paper provides insight into the CEOR mechanism and serves as an up-to-date reference for analytical modeling of the surfactant flooding, polymer flooding, and surfactant/polymer flooding CEOR process.

Degradable cross-linked polymeric microsphere for enhanced oil recovery applications

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62752-62762 ◽  
Author(s):  
Xiaorong Yu ◽  
Wanfen Pu ◽  
Dajun Chen ◽  
Jian Zhang ◽  
Fei Zhou ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Polymer Flooding ◽  
Conformance Control ◽  
Polymeric Microsphere

DCPM is served as conformance control agents and polymer flooding within deep formation.

scholarly journals Improvement of oil field development using enhanced oil recovery methods

2021 ◽  
pp. 23-28
Author(s):  
G Moldabayeva ◽  
R Suleimenova ◽  
N Buktukov ◽  
M Mergenov
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Water Injection ◽  
Oil Field ◽  
Water Soluble ◽  
Sweep Efficiency ◽  
Conformance Control ◽  
Water Soluble Polymer ◽  
Field Development ◽  
Water Cut

Purpose. To develop a technology to increase the oil recovery of formations using injection of polymer compositions. Methodology. For this study, practical methods were used such as enhanced oil recovery using stimulating technologies, technology using polymer systems based on a water-soluble polymer acrylamide, and emulsion-polymer technology. To achieve the conformance control, which was a prerequisite for testing, a thorough selection of wells was carried out, as well as an analysis of their hydrodynamic connection. Findings. As a result of using the method for limiting water inflows in the development of oil-bearing formations, redistribution of filtration channels, and a decrease in the production of fossil water as well as stabilisation of water cut were achieved. Originality. The scientific novelty of the study is the withdrawal of wells that are able to redistribute the volume of water injection at perforation intervals. Increased sweep efficiency and pressure at the wellhead at the beginning and at the end of the conformance control indicate a decrease in the conductivity of high-permeability formation intervals. Practical value. Application of the proposed technology for limiting water inflows will make it possible to develop low-permeability interlayers with filtration flows. The wells brought to a stable production rate during the study will ensure a decrease in formation water production and the water cut of the produced products, as well as stabilisation of the water cut over a certain period.

scholarly journals The experience of implementation of polymer flooding technology at Zaburunye oil filed as a method for developing mature fields

2021 ◽  
Vol 3 (1) ◽  
pp. 29-42
Author(s):  
M. Sh. Musayev ◽  
D. A. Musharova ◽  
B. Zh. Zhappasbayev ◽  
E. K. Orynbassar
Keyword(s):  
Oil Recovery ◽  
High Water ◽  
Volatile Oil ◽  
Polymer Flooding ◽  
Oil Field ◽  
Recovery Factor ◽  
Wide Range ◽  
Secondary Oil Recovery ◽  
High Water Cut Stage ◽  
High Water Cut

In conditions of high depletion of oil fields and volatile oil prices, methods of enhanced oil recovery are becoming especially relevant, the use of which contributes to an increase in the oil recovery factor in addition to the use of secondary oil recovery methods. One of the technologies allowing to increase the oil recovery factor is polymer flooding technology, the distinctive advantage of which in comparison with other chemical methods is a wide range of application conditions and design variability during implementation. This paper presents the results of the application of polymer flooding technology in the oil field of Kazakhstan Zaburunye, which is in the high water-cut stage. To determine the strategy for the further implementation of polymer flooding technology and in order to find the optimal predictive development options, calculations were carried out on the developed hydrodynamic model.

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